毕业论文热熔压敏胶的合成与性能研究
摘
要
热熔压敏胶是以热塑性聚合物为主的胶黏剂,它兼有热熔和压敏双重特性,涂胶时必须将胶加热熔化(一般为150—200℃),在熔融状态下进行涂抹,冷却中固化,固化后施加轻度指压就能起到粘接作用。它的应用范围很广,目前已用于尿布、妇女用品、双面胶带、标签、包装、医疗卫生、书籍装订、表面保护膜、木材加工、壁纸及制鞋、标签纸及地毯粘接等方面,也可制作纸基或布基的胶黏带,其中,包装用HMPSA消费量最大,几乎占总量的一半,是无溶剂型压敏胶黏剂中发展较快的几个品种之一。本文针对热熔压敏胶的初黏力、持黏力、剥离强度三大压敏性能进行研究,目的是设计研究出一种具有一定初黏力,一定剥离强度,较强持黏力的热熔压敏胶,在这个基础上,最好能具有耐高温性能。
关键词:热熔胶压敏胶持粘力软化点剥离强度
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